전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS54521

활성

17V 입력, 5A 동기형 스텝다운 컨버터

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 900 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 15 Iq (typ) (µA) 600 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 900 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 15 Iq (typ) (µA) 600 Duty cycle (max) (%) 98
VQFN (RHL) 14 12.25 mm² 3.5 x 3.5
  • Integrated 57mΩ / 50mΩ MOSFETs
  • Split Power Rail: 1.6V to 17V on PVIN
  • 200kHz to 900kHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8V Voltage Reference
  • Low 2µA Shutdown Quiescent Current
  • Hiccup Overcurrent Protection
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 125°C
    Operating Junction Temperature Range
  • Pin-to-Pin Compatible with the TPS54620
  • Adjustable Slow Start/Power Sequencing
  • Power Good Output for Undervoltage and
    Overvoltage Monitoring
  • Adjustable Input Undervoltage Lockout
  • Supported by SwitcherPro Software Tool
  • APPLICATIONS
    • Flat Panel Digital TVs
    • Set Top Boxes, Personal Video Recorders
    • Net Books
    • High Density 3.3V/5V Power Distribution
      from 12 V Bus

  • Integrated 57mΩ / 50mΩ MOSFETs
  • Split Power Rail: 1.6V to 17V on PVIN
  • 200kHz to 900kHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8V Voltage Reference
  • Low 2µA Shutdown Quiescent Current
  • Hiccup Overcurrent Protection
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 125°C
    Operating Junction Temperature Range
  • Pin-to-Pin Compatible with the TPS54620
  • Adjustable Slow Start/Power Sequencing
  • Power Good Output for Undervoltage and
    Overvoltage Monitoring
  • Adjustable Input Undervoltage Lockout
  • Supported by SwitcherPro Software Tool
  • APPLICATIONS
    • Flat Panel Digital TVs
    • Set Top Boxes, Personal Video Recorders
    • Net Books
    • High Density 3.3V/5V Power Distribution
      from 12 V Bus

The TPS54521 is a full featured 17V, 5A synchronous step down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor’s footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.

Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. The TPS54521 is available in a 14 pin, 3.5mm × 3.5mm QFN, thermally enhanced package.

The TPS54521 is a full featured 17V, 5A synchronous step down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor’s footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.

Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. The TPS54521 is available in a 14 pin, 3.5mm × 3.5mm QFN, thermally enhanced package.

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS565242 활성 SOT-563 패키지의 3V~16V 입력 전압, 5A 에코 모드, 동기 벅 컨버터 This product has smaller package and simplified design

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
3개 모두 보기
유형 직함 날짜
* Data sheet 17V Input, 5A Output, Synchronous Step Down Switcher With Integrated FET datasheet (Rev. C) 2013/08/28
EVM User's guide TPS54521 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/08/26
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 2010/09/15

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

TPS54521EVM-607 — TPS54521 동기 벅 레귤레이터용 평가 모듈

The TPS54521EVM-607 is a fully assembled and tested circuit for evaluating the TPS54521 Synchronous Step-Down Switcher with Integrated FET.
사용 설명서: PDF | HTML
TI.com에서 구매 불가
계산 툴

TPS54620DESIGN-CALC TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator

The Design Calculator Plus Application Note (SLVA352A) Calculator Tool calculates the critical external component values for the TPS54620/TPS54622/TPS54521/TPS54320/TPS54618/TPS54418/TPS54318/TPS54218/TPS54319. The calculator includes power stage design, feature design and Type II and Type III (...)
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
TPS54218 2.95V~6V 입력, 2A 동기형 스텝다운 SWIFT™ 컨버터 TPS54318 2.95V~6V 입력, 3A 동기형 스텝다운 SWIFT™ 컨버터 TPS54319 3mm x 3mm QFN 패키지, 2.95V~6V 입력, 3A, 2MHz SWIFT™ 동기형 스텝다운 컨버터 TPS54320 4.5V~17V 입력, 3A 동기 스텝다운 SWIFT™ 컨버터 TPS54418 2.95V~6V 입력, 4A 동기형 스텝다운 SWIFT™ 컨버터 TPS54521 17V 입력, 5A 동기형 스텝다운 컨버터 TPS54618 2.95~6V 입력, 6A, 동기형 스텝다운 SWIFT™ 컨버터 TPS54620 4.5V~17V, 6A 동기형 SWIFT™ 벅 컨버터 TPS54622 히컵 전류 제한을 지원하는 4.5V~17V, 6A 동기형 SWIFT™ 벅 컨버터 TPS54821 4.5V~17V, 8A 동기 벅 컨버터(히컵 전류 제한 지원) TPS56921 VID 제어를 지원하는 4.5V~17V, 9A 동기형 벅 컨버터
하드웨어 개발
평가 보드
TPS54418EVM-375 TPS54418 3.3V 입력, 1.8V 출력, 4A SWIFT™ 평가 모듈 TPS54620EVM-374 TPS54620 8V~17V, 6A SWIFT™ 컨버터 평가 모듈
소프트웨어
계산 툴
TPS54620DESIGN-CALC TPS54620 및 TPS54XXX 전류 모드 스텝다운 컨버터 설계 계산기
레퍼런스 디자인

TIDA-00570 — 산업용 3D 프린팅 및 디지털 노광을 위한 고속 DLP 서브시스템 레퍼런스 디자인

The High Speed DLP® Sub-system Reference Design provides system-level DLP development board designs for industrial Digital Lithography and 3D Printing applications that require high resolution, superior speed and production reliability. The system design offers maximum throughput by integrating (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDEP0011 — 동적 전압 스케일링이 가능한 C667x DSP AVS 코어(CVDD)용 전원 솔루션

This reference design aims to supply the AVS core supply (CVDD) in the Keystone Multicore DSPs, mainly the C66x series. The C66x series uses SmartReflex technology to enable the DSP to control its supply voltage. In order to meet this requirement, this design combines a Synchronous Buck Converter (...)
Test report: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RHL) 14 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상